12279712 has 24 divisors (see below), whose sum is σ = 25598916. Its totient is φ = 5778432.

The previous prime is 12279703. The next prime is 12279779. The reversal of 12279712 is 21797221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12082576 + 197136 = 3476^2 + 444^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10743 + ... + 11830.

Almost surely, 2^12279712 is an apocalyptic number.

It is an amenable number.

12279712 is an abundant number, since it is smaller than the sum of its proper divisors (13319204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12279712 is a wasteful number, since it uses less digits than its factorization.

12279712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22600 (or 22592 counting only the distinct ones).

The product of its digits is 3528, while the sum is 31.

The square root of 12279712 is about 3504.2420007756. The cubic root of 12279712 is about 230.7080386586.

The spelling of 12279712 in words is "twelve million, two hundred seventy-nine thousand, seven hundred twelve".